Results 81 to 90 of about 73,555 (300)

A comment on pulsatile pipe flow [PDF]

open access: yes, 2011
This article is concerned with analytic solutions of flows in cylindrical and annular pipes subject to an arbitrary time dependent pressure gradient and arbitrary initial ...
McGinty, Sean, Mckee, Sean
core   +1 more source

Transition to turbulence in pulsating pipe flow

open access: yes, 2017
Fluid flows in nature and applications are frequently subject to periodic velocity modulations. Surprisingly, even for the generic case of flow through a straight pipe, there is little consensus regarding the influence of pulsation on the transition ...
Hof, Björn   +4 more
core   +1 more source

Persistent Vascular Collagen Accumulation Alters Hemodynamic Recovery from Chronic Hypoxia [PDF]

open access: yes, 2012
Pulmonary arterial hypertension (PAH) is caused by narrowing and stiffening of the pulmonary arteries that increase pulmonary vascular impedance (PVZ). In particular, small arteries narrow and large arteries stiffen. Large pulmonary artery (PA) stiffness
Chesler, Naomi C.   +5 more
core   +2 more sources

A Biomarker‐Driven Ovary–Endometrium Organ‐on‐a‐Chip Mimicking 3D Multicellular Complexity and Menstrual Cyclicity for Predicting Reproductive Toxicity

open access: yesAdvanced Science, EarlyView.
We present a dual‐organ, biomarker‐integrated ovaryendometrium organ‐on‐a‐chip that recapitulates 3D tissue complexity, menstrual cycle dynamics, and hormonal crosstalk. This platform enables real‐time, cell‐typespecific fluorescent readouts of reproductive toxicity using ANGPTL4 and SERPINB2 as early‐response reporters.
Soo‐Rim Kim   +6 more
wiley   +1 more source

Measuring the Interaction Between the Macro- and Micro-Vasculature

open access: yesFrontiers in Cardiovascular Medicine, 2019
Structural and functional dysfunction in both the macro- and microvasculature are a feature of essential hypertension. In a healthy cardiovascular system, the elastic properties of the large arteries ensure that pulsations in pressure and flow generated ...
Rachel E. Climie   +12 more
doaj   +1 more source

Stratification of a population of intracranial aneurysms using blood flow metrics. [PDF]

open access: yes, 2014
Indices of the intra-aneurysm hemodynamic environment have been proposed as potentially indicative of their longitudinal outcome. To be useful, the indices need to be used to stratify large study populations and tested against known outcomes.
Berkowitz, Benjamin   +7 more
core   +2 more sources

Timing Mechanotransduction: Mechanically Dynamic Biomaterials Reveal the Temporal Hierarchy of YAP/TAZ Control Nodes

open access: yesAdvanced Science, EarlyView.
This work develops dynamically softening polyacrylamide hydrogels for time‐resolved imaging during continuous mechanical transitions. The study revealed that mechanotransduction is biphasic; YAP/TAZ inactivation is driven by early loss of the nucleocytoskeletal continuum connecting subnuclear adhesions, F‐actin, and the nuclear envelope, coupled with ...
Alessandro Gandin   +12 more
wiley   +1 more source

Waves in arteries: A review of wave intensity analysis in the systemic and coronary circulations

open access: yesArtery Research, 2008
The intermittent ejection of blood by the ventricle results in pulsatile pressure and flow waveforms in the circulation. Understanding and characterizing this pulsatile behaviour is attracting increasing clinical interest, as it may have important ...
Alun D. Hughes   +2 more
doaj   +1 more source

Investigating inter-turn fault in transformer using TTR and FRA [PDF]

open access: yes, 2019
Transformers are one of the significant elements in the power system network. The Transformer function is to step up and down the voltages. When the transformer operating in high load, it exposes to failures.
Abdulrazzaq Al-Iedani, Ali Salman
core  

Pulse oximetry and oxygenation assessment in small animal practice [PDF]

open access: yes, 2016
Oxygen is essential for the cellular respiration of all aerobic organisms so it is important that the amount of oxygen present within the circulation can be measured.
Auckburally, Adam
core   +1 more source

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